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Lithium/thionyl dichloride battery

A technology of thionyl chloride battery and thionyl chloride solution, which is applied to the battery field, can solve problems such as weakening the performance of lithium/thionyl chloride batteries, and achieve the effects of improving voltage hysteresis, improving performance and improving open circuit voltage.

Inactive Publication Date: 2011-10-05
SUZHOU JINKEFA LITHIUM BATTERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some of the above methods can improve certain performances of lithium / thionyl chloride batteries to a certain extent, but some of them weaken the other properties of lithium / thionyl chloride batteries at the cost of "sacrificing" the capacity of lithium / thionyl chloride batteries. some performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A lithium / thionyl chloride battery, with lithium as an anode, carbon as a cathode carrier, and a thionyl chloride solution of anhydrous lithium tetrachloroaluminate as an electrolyte, the active material of the battery contains calcium chloride, and the chlorination Calcium is doped in the cathode material of the lithium / thionyl chloride battery, and the mass ratio of calcium chloride in the cathode material of the lithium / thionyl chloride battery is 0.02.

[0017] The production method of above-mentioned lithium / thionyl chloride battery is: in the production process of the cathode material of lithium / thionyl chloride battery, add the calcium chloride that mass ratio is 0.02, make the lithium / thionyl chloride containing calcium chloride The cathode material of the battery; in a dry environment with a relative humidity of ≤1%, the cathode material of the above-mentioned lithium / thionyl chloride battery containing calcium chloride, the glass fiber diaphragm, and the metal ...

Embodiment 2

[0019] A lithium / thionyl chloride battery, with lithium as an anode, carbon as a cathode carrier, and a thionyl chloride solution of anhydrous lithium tetrachloroaluminate as an electrolyte, the active material of the battery contains calcium chloride, and the chlorination Calcium is incorporated in the electrolyte material of the lithium / thionyl chloride battery, and calcium chloride is saturated in the electrolyte material of the lithium / thionyl chloride battery.

[0020] The production method of above-mentioned lithium / thionyl chloride battery is: in the production process of the electrolyte material of lithium / thionyl chloride battery, add calcium chloride, and calcium chloride is in the electrolyte material of lithium / thionyl chloride battery Reach saturation, make the electrolyte material of the lithium / thionyl chloride battery that contains calcium chloride; In the dry environment of relative humidity≤1%, the cathode material of lithium / thionyl chloride battery, glass fi...

Embodiment 3

[0022] A lithium / thionyl chloride battery, with lithium as an anode, carbon as a cathode carrier, and a thionyl chloride solution of anhydrous lithium tetrachloroaluminate as an electrolyte, the active material of the battery contains calcium chloride, and the chlorination Calcium is mixed in the cathode material of the lithium / thionyl chloride battery and the electrolyte material of the lithium / thionyl chloride battery, and the mass ratio of calcium chloride in the cathode material of the lithium / thionyl chloride battery is 0.01, and the chloride Calcium is saturated in the electrolyte material of lithium / thionyl chloride cells.

[0023] The production method of above-mentioned lithium / thionyl chloride battery is: in the production process of the cathode material of lithium / thionyl chloride battery, add the calcium chloride that mass ratio is 0.01, make the lithium / thionyl chloride containing calcium chloride The cathode material of the battery; in the production process of t...

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Abstract

The invention relates to a lithium / thionyl dichloride battery, which is characterized in that lithium is taken as an anode, carbon is taken as a cathode carrier, a thionyl dichloride solution of anhydrous lithium aluminum tetrachloride is taken as an electrolyte, and an active material of the battery contains calcium metal halides. The lithium / thionyl dichloride battery can improve voltage hysteretic properties and be used under the condition of intermediate-rate and high-rate discharge at a low temperature.

Description

technical field [0001] The invention relates to the technical field of batteries, in particular to a lithium / thionyl chloride battery. Background technique [0002] Lithium / thionyl chloride (Li / SOCl 2 ) battery is a lithium as an anode, carbon as a cathode carrier, anhydrous lithium tetrachloroaluminate thionyl chloride (SOCl 2 ) solution as the lithium battery electrolyte. Lithium / thionyl chloride batteries have the characteristics of high specific energy, large specific power, stable discharge voltage, and long storage life. They are widely used in military and civilian industries such as aerospace, underwater weapons, navigation equipment, geological exploration, and instrumentation. application. Lithium / thionyl chloride battery is currently the battery with the highest specific energy and specific power in the battery field. [0003] The main problems of lithium / thionyl chloride batteries are voltage hysteresis and safety issues. The voltage hysteresis problem seriou...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/052H01M4/62
CPCY02E60/122Y02E60/12Y02E60/10
Inventor 汪沣钱国珠肖辉汪以道
Owner SUZHOU JINKEFA LITHIUM BATTERY
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